Mechanism for feeding and transporting printing plates

Details Mechanism for feeding and transporting printing plates Mechanism for feeding and transporting printing plates

1981-04-02

1982-06-15

Eickholt, E. H.

Printing

Printing members

Plate mountings

430 49, 355 76, B41B 1532

Patent

active

043344720

ABSTRACT:
A mechanism for feeding and transporting printing plates to an exposure table with the aid of transport rollers. The uppermost of the printing plates is stacked in a plate holder. This plate is gripped by a swiveling lifting cylinder and is, after being swung through a semi-circular arc movement, deposited on a suction plate of the exposure table. The transport rollers, which are arranged on either side of the suction plate, are driven by a drive roller in each row via drive belts. Those transport rollers which are the first in each row (from the standpoint of the direction of printing plate travel) are arranged on swivel blocks which are swiveled outwardly from the rows before the printing plate is put down. This enables the forward part of the printing plate to be deposited on the suction plate without jamming. As soon as the printing plate rests on the suction plate, the first transport rollers are swiveled towards the lateral edges of the printing plate which is then transported forward, its lateral edges being guided in grooves provided in the transport rollers.

REFERENCES:
patent: 2923235 (1960-02-01), Voegelin
patent: 3920333 (1975-11-01), Wally, Jr.
patent: 4006984 (1977-02-01), Friese
patent: 4149798 (1979-04-01), McGowan et al.
patent: 4262594 (1981-04-01), Landsman
patent: 4294540 (1981-10-01), Thettu

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